System: Powertrain (P-Code)
SAE Standard (Generic)
Family: Turbo Interstage Pressure Sensor
Code P2D22: Turbocharger Interstage Pressure Sensor A Circuit Range/Performance
Diagnostic & Technical Explanation
Code P2D22 (Turbocharger Interstage Pressure Sensor A Circuit Range/Performance) covers the pressure sensor mounted between stages on a sequential or two-stage turbocharger system, used to confirm the first-stage compressor is delivering the pressure the second stage needs. The ECM flags an open, shorted, out-of-range, or intermittent signal. Causes are a cracked or disconnected sense line between the stages, a failed sensor element, or a corroded connector.
First-listed procedure
Rank #1
Inspect interstage pressure sense line
Easy DIY
This is the first procedure in the authored
consideration order, not a measured cause likelihood. Execute it only when its prerequisites
and diagnostic findings support it. Its cost and labor estimates (where known), the step-by-step procedure and the
remaining 2 procedure(s) are in the licensed dataset. Ordering context.
Full family: Turbo Interstage Pressure Sensor
What this page does not show
This page publishes the fault mechanism and the code index. The licensed dataset adds, for
every one of the 15,886 codes, the full authored repair set (56,729 procedures in total)
with the fields deliberately withheld here:
- Procedures 2..n after the first-listed procedure
- Aftermarket parts cost ranges in USD (
est_parts_cost_min/max_usd)
- Professional labor-hour estimates (
est_labor_hours)
- Step-by-step diagnostic and repair instructions
- Replacement-part mappings and catalog lookups
- 6,637 manufacturer-specific OEM codes across 32 makes ($149 tier)